Structure and cytotoxic activity of ulvan extracted from green seaweed Ulva lactuca.

Abstract:

:The structure of an ulvan obtained by water extraction from green seaweed Ulva lactuca was elucidated by using IR, NMR, SEC-MALL and ESIMS methods. The ulvan was also evaluated for its cytotoxic effects on three human cancer cell lines. The results showed that the ulvan was composed of rhamnose, galactose, xylose, manose, glucose (with a mole ratio of Rha: Gal: Xyl: Man: Glu equal to 1: 0.03: 0.07: 0.01: 0.06), uronic acid (21.5%) and sulfate content (18.9%) with a molecular weight of 347000. This ulvan mainly consists of disaccharide [→4)-β-d-GlcA-(1→4)-α-l-Rha3S-(1→] and other minor disaccharide β-GlcA-(1→2)-α-Xyl and β-GlcA-(→2)-α-Rha. The ulvan showed a significant cytotoxic activity against hepatocellular carcinoma (IC50 29.67±2.87μg/ml), human breast cancer (IC50 25.09±1.36μg/ml), and cervical cancer (IC50 36.33±3.84μg/ml).

journal_name

Int J Biol Macromol

authors

Thanh TT,Quach TM,Nguyen TN,Vu Luong D,Bui ML,Tran TT

doi

10.1016/j.ijbiomac.2016.09.040

subject

Has Abstract

pub_date

2016-12-01 00:00:00

pages

695-702

issue

Pt A

eissn

0141-8130

issn

1879-0003

pii

S0141-8130(16)31599-9

journal_volume

93

pub_type

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